Enhanced modeling and control of VSIs in microgrids operating in grid-connected mode

Author

Rese, Leonardo ; Costa, Antonio Simões ; Silva, Aguinaldo S E

fYear

2012

Firstpage

1

Lastpage

8

Abstract

This paper focus on the influence of filter dynamics on the performance and stability of current control loops of three-phase, pulse-width modulation (PWM) voltage source inverters (VSIs) in grid-connected operating mode. The analysis considers the application of those devices in microgrids. Based on a detailed state-space model of VSIs and their companion filters, enhanced controller design techniques are applied in order to prevent the drawbacks of conventional microgrid control strategies. The effectiveness of the proposed control strategy is verified via computer simulations.

Keywords

PWM invertors; control system synthesis; distributed power generation; electric current control; power distribution control; power filters; power generation control; power grids; stability; VSI control; computer simulations; controller design techniques; current control loops performance; current control loops stability; filter dynamics; grid-connected operating mode; microgrid control strategies; state-space model; three- phase pulse-width modulation voltage source inverters; Current control; Equations; Integrated circuit modeling; Inverters; Mathematical model; State feedback; Voltage control; Inverter Control; LCL Filter; Microgrids; Voltage Source Inverter (VSI);

fLanguage

English

Publisher

ieee

Conference_Titel

Innovative Smart Grid Technologies (ISGT), 2012 IEEE PES

Conference_Location

Washington, DC

Print_ISBN

978-1-4577-2158-8

Type

conf

DOI

10.1109/ISGT.2012.6175604

Filename

6175604